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G. LANGER.

FILTER.

Patented Mar. 24,/ 1896.

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(No Model.)

- Nunn STATES PATENT OFFICE..

GOTTHOLD LANGER, OF ST. LOUIS, MISSOURI, ASSIGNOR, BY DIRECT AND MESNE ASSIGNMENTS, PLACE.

TO THE PERFECT FILTER COMPANY, OF SAME FILTER.

SPECIFICATION forming part of Letters Patent No. 557,07 5, dated March 24, 1896.

Application filed July l5, 1895. Serial No. 555,954. (No model.)

To all whom t may concern.:

Be it known that I, GorTHoLD LANGER, a citizen of the United States, residing at St. Louis, State of Missouri, have invented certain new and useful Improvements in Filters,

of Which'the following is a full, clear, and exact description, reference being had to the accompanying drawings, forming a part hereof.

My invention has relation to improvements 1o in water-filters; and it consists in the novel arrangement and combination of parts more fully set forth in the specification and pointed out in the claims.

In the drawings, Figure l is a middle vertical longitudinal section-of my invention;

and Fig. 2 is a detail section on the line c a: of Fig. 1, showing a portion of the annular passage above the filter-chamber.

The object of my invention is to construct 2o a water-filter which shall be simple and durable, and one that can be readily taken apart and cleaned and permit the easy insertion thereinto of a new filtering-diaphragm when the old one becomes clogged and of no longer 2 5 service.

A further object is to construct a filter which shall control the influx of the hydrant-water, causing an even distribution of the same into the filter-chamber, and clearing such infiow- 3o ing water of a portion of the suspended sediment carried by it before said water begins to percolate through the replaceable diaphragm of the apparatus.

In detail the device may be described as 3 5 follows:

Referring to the drawings, 1 represents a hollow casing of preferably cylindrical contour having a water-inlet passage 2, the outer end of which is screw-threaded, adapting the 4o casing to be secured to any suitable supplynicate with the top of the filter-chamber 5 of the apparatus. The said openings 4 are in proximity to the upper edge of the outer wall of a depending hollow cone 6, cast integral with the casing, the said cone being open 5o above and below. The walls of said cone are provided with a series of openings 7, which are expanded on the side facing the filterchamber, as seen by the inclined or conical walls S, forming the sides of the forward portion of said openings, the object of said inclined walls being to form a lodging-place for Whatever sediment may be carried into the filter-chamber by the infiux of the Water y through the openings 4 leading from the annular passage 3. The bottom of the filterchamber is provided with an outlet-pipe 9, from which the dirty water can be withdrawn at intervals. Along the inner Walls of the depending cone 6 are distributed layers of filtering-papers 10, said layers being held in place by the correspondingly-conical walls of the clear-water chamber 11, said chamber having a solid or imperforate ybottom 12 and perforated walls 13. An outer passage 14 leads from the top of the clear-water chamber, such passage being formed by the top wall of the chamber and an adjacent deflecting-plate 15, between which and the said top Wall the delivery-faucet 16 is screwed. Pivoted to the opposite sides of the casing 1 are arms 17, connected at their free ends by a cross-piece 18, the whole forming a yoke adapted to span the clear-water chamber. The cross-piece 18 carries a binding-screw 19, having a conical inner end adapted to enter a correspondinglyconical depression in the knob or enlarged portion 20, formed along the top wall of the conical clear-water chamber. Then the yoke, with its binding-screw, is brought or swung opposite the depression'of the knob 20, the screw is forced downward, so as to tightly clamp the conical clear-Water chamber 11 against the filtering paper or diaphragm interposed between its outer Walls and the inner walls of the cone 6. By this arrangement it is obvious, too, that variable thicknesses of filter-diaphragm may be interposed between the filter-chamber and the clear-water chamber, the thickness of the paper used of course depending on the character and quality of water to be filtered.

The path of the water through the filter is fully indicated by the arrows and needs no detailed description. It is further obvious from the construction that the openings 4 leading from Athe passage 3 will distribute the water evenly as it enters the filter-chamber IOO.

and cause any sediment that the Water carries to lodge more or less against the conical Walls of the openings 8 leading to the filterdiaphragm, the tendency of said Walls being to precipitate the sediment to the bottom of the filter-chamber. It is further obvious that the device can be readly disassembled and the several parts cleaned and new filter-paper introduced. Another purpose of the openings e is that they serve to fiush the filterchamber and cleanse the same of all accumulated dirt When the Water is turned on at the supply-pipe and the valve in the discharge or outlet pipe 9 at the bottom of the filter-chamber is opened. Under these circumstances the Water rushes With full force through the filter-chamber carrying before it all accumulated sediment.

Having described my invention, what I claim is- 1. In a filter apparatus, a suitable filtercharnber having an outer imperforate Wall and an inner perforated cone, a series of openings or passages for distributing the Water about the outer surface of the said cone, a filter-diaphragm adapted to be supported on the inner surface of the cone a conical clear-Water chamber having perforated Walls adapted to firmly hold the diaphragm between said Walls and the inner surface of the perforated cone and suitable means for tightly clamping the walls of the clear-Water chamber against the diaphragm supported by the inner surface of the perforated cone of the filter-chamber, substantially as set forth.

2. In a filter apparatus, a suitable filterchamber having an outer imperforate Wall, a perforated inner Wall, suitable openings or passages for distributing the Water along the outer surface of the perforated Wall, and inclined Walls leading to and forming the exposed portions of the perforations of the inner Wall for precipitating the sediment to the bottom of the filter-chamber, substantially as set forth.

3. A filter apparatus comprising a suitable casing having an outer Wall, an inner depending cone open at both ends forming the inner Wall of the filter-chamber, a series of openings in the Walls of said cone, inclined or conical Walls leading to said openings on the side adjacent to the filter-chamber, a main passage formed in the casing, an annular passage adjacent to the upper end of the cone communicating with the main passage of the filter, a series of openings leading from the annular passage in proximity to the upper edge of the cone, into the filter-chamber, a conical clear-Water chamber havin g an imperforate bottom and perforated walls adapted to be inserted into the depending cone, a filter-diaphragm adapted to be interposed between the Walls of the conical clear-Water chamber and the depending cone, a deflectingplate formed in the top of the clear-Water chamber, a delivery-passage formed by said deecting-plate and the top Wall of the clear- Water chamber, a yoke pivoted to the walls of the casing, a bindin (1f-screw carried by said yoke, said screw adapted to be forced against the top Wall of the clear-Water chamber and hold the latter firmly against the diaphragm interposed between said chamber and the inner Walls of the filter-chamber, substantially as set forth. l

In testimony whereof I affix my signature in presence of two witnesses.

GOTTHOLD LANGER. lVitnesses:

O. F. KELLoRs, ALFRED A. MATHEY. 

